Liquid crystal display device and driving method thereof

A liquid crystal display panel, comprising a gate controller, a source controller and a pixel unit, the gate controller providing a scanning signal to the pixel unit by scan lines, the source controller providing a data signal to the pixel unit by data lines, wherein the driving method of the liquid crystal display panel comprises:

• receiving input video data;
• determining that whether the input video data are within a plurality of video data intervals of predetermined complexion frame;
• if the input video data is within a certain video data intervals of predetermined complexion frame, then obtain high video data and low video data according to the input video data;
• and
• providing the high video data to one of the pixel units, and providing the low video data to the other pixel units;
• wherein the liquid crystal display panel further comprises a lookup table, the lookup table comprises a plurality of video data, high video data and low video data, the high video data and the low video data are divided from the video data, the step of obtaining corresponding high video data and low video data according to the input video data is:
• obtaining corresponding high video data and low video data of the input video data by finding the lookup table according to the input video data.